i am trying to run linux on realview_eb_mpcore.I read some articles about how to port linux and uboot to a new board,according to the article, when I am porting the uboot, i should modifya file called lowlevel_init.c , which is in the foldboard/realview_eb. this file describes the memory partition of theboard. but in the realview_eb , this file doesn't do this job.anyone can tell me , where is it done?